<template>
  <div class="home-category" @mouseleave="categoryId = null">
    <ul class="menu">
      <li
        @mouseenter="categoryId = item.id"
        v-for="item in $store.getters['cate/cateList']"
        :key="item.id"
        :class="{ active: categoryId === item.id }"
      >
        <RouterLink to="/">{{ item.name }}</RouterLink>
        <template v-if="item.children">
          <RouterLink to="/" v-for="cate in item.children" :key="cate.id">{{ cate.name }}</RouterLink>
        </template>
        <span v-else>
          <XtxSkeleton width="60px" height="18px" style="margin-right:5px" bg="rgba(255,255,255,0.2)" />
          <XtxSkeleton width="50px" height="18px" bg="rgba(255,255,255,0.2)" />
        </span>
      </li>
      <li @mouseenter="categoryId = 'brandId'" :class="{ active: categoryId === 'brandId' }">
        <RouterLink to="/">{{ brand.name }}</RouterLink>
        <RouterLink to="/" v-for="cate in brand.children" :key="cate.id">{{ cate.name }}</RouterLink>
      </li>
    </ul>
  </div>
  <!-- 弹层 -->
  <div class="layer" v-if="categoryId !== 'brandId' && goods && goods.length">
    <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
    <ul>
      <li v-for="item in goods" :key="item.id">
        <RouterLink to="/">
          <img :src="item.picture" alt="" />
          <div class="info">
            <p class="name ellipsis-2">{{ item.name }}</p>
            <p class="desc ellipsis">{{ item.desc }}</p>
            <p class="price"><i>¥</i>{{ item.price }}</p>
          </div>
        </RouterLink>
      </li>
    </ul>
  </div>
  <div class="layer" v-if="categoryId === 'brandId'">
    <h4>品牌推荐 <small>根据您的购买或浏览记录推荐</small></h4>
    <ul>
      <li class="brand" v-for="item in brand.brands" :key="item.id">
        <RouterLink to="/">
          <img :src="item.picture" alt="" />
          <div class="info">
            <p class="place"><i class="iconfont icon-dingwei"></i>{{ item.place }}</p>
            <p class="name ellipsis">{{ item.nameEn }}</p>
            <p class="desc ellipsis-2">{{ item.name }}</p>
          </div>
        </RouterLink>
      </li>
    </ul>
  </div>
</template>

<script>
import { useStore } from 'vuex'
import { reactive, ref, computed } from 'vue'
import { findBrandAPI } from '@/api/home.js'
export default {
  name: 'HomeCategory',
  setup() {
    const store = useStore()
    const categoryId = ref(null)
    const goods = computed(() => {
      const cate = store.state.cate.list.find(item => item.id === categoryId.value)
      return cate ? cate.goods : []
    })
    const brand = reactive({
      id: 'brandId',
      name: '品牌',
      children: [{ id: 'subBrandId', name: '品牌推荐' }],
      brands: []
    })
    const findBrand = async () => {
      const res = await findBrandAPI()
      brand.brands = res.result
    }
    findBrand()
    return { categoryId, brand, goods, findBrand }
  }
}
</script>

<style scoped lang="less">
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover,
      &.active {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
}
.layer {
  width: 990px;
  height: 500px;
  background: rgba(255, 255, 255, 0.8);
  position: absolute;
  left: 250px;
  top: 0;
  display: none;
  padding: 0 15px;
  h4 {
    font-size: 20px;
    font-weight: normal;
    line-height: 80px;
    small {
      font-size: 16px;
      color: #666;
    }
  }
  ul {
    display: flex;
    flex-wrap: wrap;

    li {
      width: 310px;
      height: 120px;
      margin-right: 15px;
      margin-bottom: 15px;
      border: 1px solid #eee;
      border-radius: 4px;
      background: #fff;
      &:nth-child(3n) {
        margin-right: 0;
      }

      a {
        display: flex;
        width: 100%;
        height: 100%;
        align-items: center;
        padding: 10px;
        &:hover {
          background: #e3f9f4;
        }
        img {
          width: 95px;
          height: 95px;
        }
        .info {
          padding-left: 10px;
          line-height: 24px;
          width: 190px;
          .name {
            font-size: 16px;
            color: #666;
          }
          .desc {
            color: #999;
          }
          .price {
            font-size: 22px;
            color: @priceColor;
            i {
              font-size: 16px;
            }
          }
        }
      }
    }
  }
}
.layer li.brand {
  height: 180px;
  a {
    align-items: flex-start;
    img {
      width: 120px;
      height: 160px;
    }
    .info {
      p {
        margin-top: 8px;
      }
      .place {
        color: #999;
      }
    }
  }
}
&:hover {
  .layer {
    display: block;
  }
}
.xtx-skeleton {
  animation: fade 1s linear infinite alternate;
}
@keyframes fade {
  from {
    opacity: 0.2;
  }
  to {
    opacity: 1;
  }
}
</style>
